...is a set of libraries to compose pull-based collections and LINQ-style query operators in JavaScript

The Interactive Extensions for JavaScript (IxJS) is an implementation of Language Integrated Query (LINQ) to Objects in native JavaScript with a core set of operators on par with the .NET implementation. This implementation uses the same techniques for lazy evaluation of chained functions, for example map/select and filter/where. This allows you as the user to write rich expressive queries against a number of data sources without taking a performance hit.

We provide two files, a core implementation of LINQ to Objects in l2o.js and the Interactive Extensions in ix.js. The Interactive Extensions is a set of functions that were found to be useful for the Reactive Extensions (Rx) and were ported from the push model of Rx to a pull model.

Getting started is easy. For example, we could generate data, filter it and then display the results:

Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
Microsoft Open Technologies would like to thank its contributors, a list
of whom are at http://rx.codeplex.com/wikipage?title=Contributors.

Licensed under the Apache License, Version 2.0 (the "License"); you
may not use this file except in compliance with the License. You may
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http://www.apache.org/licenses/LICENSE-2.0

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